Adjustment for solar cameras



(No Model.)

W. o. STRONG.

ADJUSTMENT POR SGLAB. CAMERAS.

ATTORNEYS.

Patented Apr. 7, 188,5.

N. Pima Pnomuuwgnpw, wmgm. lic

No(A 315,450.

UNITED STATES Parntrr OFFICE@ WILLIAM OYRUS STRONG, OF KENTS HILL, MAINE.

ADJUSTMENT FOR SOLAR CAMERAS.

g SPECIFICATION forming part of Letters Patent No.315,450, dated April 7,1885.

Application tied March 22, 1ers. (No maar.)

ifo all whom it may concern,.-

Beit known that LWILLIAM GYRUs STRONG, a citizen ofthe United States,residing at Kents Hill, Readlield, in the county of Kennebec and State of Maine, have invented a new and useful Solar Camera, of which the following is a speciiication. i

My invention relates to improvements in apparatus for luminous projection and other purposes in which a beamof sunlight is employed, said beam being directed by a solar camera having a mirror and two lenses; second, to afford facilities for the ready adjustment of the mirror; third, to cut ott' communication between the air in the room where the apparatus is used and the outside air fourth, to arrange the cross-piece to which are attached the bar of the projecting lens and the slide-holder in such manner as to secure the several objects named in the following detailed description; fifth, to provide for a ready adjustment of the projecting lens by a lens-bar pivoted to swing to either side in a horizontal plane; sixth, to render the slide-holder readily removable. I attain these objects by the mechanism illustrated by the accompanying drawings, in which- ,Figure 1 is a front-elevation of my inven- --tion with the inner lens swung to one side;

and Fig. 2 is a vertical section of the same on the line y z of Fig. 1, showing the inner lens parallel with the outer lens.

Similar letters refer to similar parts in the two figures.

The body of the apparatus consists of a foundation, F, designed to fit into a rectangular opening in asuitablewindow-shutter, and having a circular hole near its center, into which is fitted the movable collar C, made in two similar parts and screwed together, the collar being kept in position by iianges projecting from it on either side of the foundation. On the front or inner side this collar has a rabbet, into which is fitted the ring G, which serves as the mounting of the condensing-lens E. To the outer and lower side of the collar is hinged at V the mirror M. The adjustments of the mirror are secured, first, by the rotation of the collar C in the foundation F by the lever L, which serves asa kind of crank; and, second, upon the hinge V by the cord H, which is attached to the mirror, and which,

| passing through the collar at W, is wound` upon the knob K, fixed upon said lever L and serving as its handle.

To the lower part of the foundation F is fast` eued the cross-piece I, to which is attached,

on the upper side, the slide-holder S. "Ihe slide-holder is secured in position by the pins p p, projecting from it and passing down through bar N, which, turning upon the screw t, may swing to either side. slides at O the projecting lens R, which isadjustable vertically by means ofthe telescopejoint I?. The slidelholder S is removable by Upon the lens-bar N.k

lifting the pins pp, attached to it, out of their sockets in the cross-piece I. The cross-piece I might have Various forms. I prefer to make itin the form of a shelf running across the whole width of the foundation F.

Many parts of the apparatus I do not claimy to be new.

What I do claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with the foundation F, having a circular hole near its center, of the two flanged collars C, fitted to the said hole, t i

the lever L, secured to the inner collar and provided with the knob K, pivoted to it, the i mirror m, hinged to the outer collar, and the cord H, secured at one end to the mirror and at the outer end to the knob K, to be wound thereon, substantially as described, whereby` the mirror may be both rotated and elevated A or depressed by means of the said knob.

2. The combination, with the foundation F, the mirror m, and lens E, secured thereto, as`

described, and the cross-piece I, alsorsecured Yto the foundation F, of the lens-bar N, pivoted at t to the cross-piece I, the lens R, and the telescopingjoint P, supporting the lens and provided with the slide O, fitted to the bar N,

as shown and described,lwhlereby the lens R may be raised or lowered,frnay be caused to approach or recedefrom the lens E, andmay be swung horizontally out of parallel therewith, as described. j

WILLIAM CYRUS STRONG.

Witnesses:

Evnnnrr A. NASH, LYMAN A..OALL.

63"` the cross-piece I. To the lower side of said cross-piece is attached by the screw t the lens- 

